The formula is area equals length times width...
A=L×W
plug in the info u already know...
8-3/4 = 3-1/2 • W
Make all fractions improper...
35/4 = 7/2 • W
Divide 7/2 on both sides...
35/4 ÷ 7/2 = W
5/2 = W
or you could put it as a mixed fraction: 2-1/2.
The width of the table os 2-1/2 feet wide.